10 Best Practices for YouTube Thumbnails That Get Clicks

Designing for Clicks

Your thumbnail is the single most important factor in determining whether someone clicks your video. A great video with a bad thumbnail will fail, but an average video with an incredible thumbnail can go viral.

Here are the top practices used by the biggest creators on the platform.

1. Show Strong Emotion

Humans are hardwired to look at faces, specifically expressive ones. Whether it's shock, excitement, anger, or confusion, an expressive face builds curiosity and drives clicks. Make sure the face is large enough to be clearly visible on mobile devices.

2. Follow the Rule of Thirds

Don't center everything perfectly. Place your subject on the left or right third of the image, and use the empty space for text or visual context. This creates a more dynamic and engaging composition.

3. Keep Text Minimal (Under 4 Words)

People don't read thumbnails; they glance at them. If your thumbnail has a full sentence, it's too much. Stick to 2-4 punchy words that complement the title rather than repeating it.

4. High Contrast Colors

Your thumbnail needs to pop against YouTube's white (or dark gray) background. Use bright, saturated colors. A common trick is to use complementary colors (like blue and orange) to create natural visual tension and contrast.

5. Create a "Curiosity Gap"

The best thumbnails raise a question that can only be answered by watching the video. Show the "before" and "after", or an impossible situation, or a hidden object. Make the viewer think, "Wait, how did they do that?"

6. Design for Mobile First

Over 70% of YouTube viewing happens on mobile. Shrink your thumbnail down to the size of a postage stamp. Can you still read the text? Can you still tell what the image is? If not, redesign it.

7. Consistent Branding

When someone sees your thumbnail in the sidebar, they should immediately know it's yours. Use consistent fonts, colors, or visual layouts across your channel to build brand recognition.

8. Use Outlines and Drop Shadows

If your subject blends into the background, use a thick stroke or drop shadow to separate them. This adds depth and makes the subject pop.

9. Avoid the Bottom Right Corner

As mentioned in our size guide, YouTube places the timestamp in the bottom right corner. Never put text or important visuals there.

10. A/B Test Your Thumbnails

YouTube now offers built-in A/B testing for thumbnails. Always design 2-3 variations and let the data decide which one works best!